我们决定在我们的应用程序中使用新的DynamoDbAppSettings类来利用DynamoDb。我们目前正在使用从AppSettings继承的自定义类(下面显示的类的一部分):
public class MyAppSettings : AppSettings
{
public ApplicationEnvironment Environment
{
get { return Get("Environment", ApplicationEnvironment.Development); }
}
public List<string> AdministratorEmails
{
get { return Get("AdminEmailAddresses", new List<string>()); }
}
public string CompanyReadConnectionString
{
get
{
string settingsName = "CompanyReadConnectionString_{0}".Fmt(Environment);
return Get(settingsName, string.Empty);
}
}
}
我不太清楚如何转换到MultiAppSettings。例如,我们目前注册我们的AppSettings如下:
//Custom App settings
container.RegisterAutoWired<MyAppSettings>();
MyAppSettings appSettings = container.Resolve<MyAppSettings>();
然后我可以使用appSettings变量轻松访问我的应用程序设置,在自定义类中检查所有默认值等,以及没有&#34;魔术字符串&#34;分散在我的申请表中。举个例子,我可以通过以下方式轻松获得调试模式:
appSettings.DebugMode
对于DynamoDb,我添加了代码中显示的代码:
MultiAppSettings multiAppSettings = new MultiAppSettings(
new DynamoDbAppSettings(
new PocoDynamo(AwsConfig.CreateAmazonDynamoDb()), true),
new MyAppSettings());
但我现在还不清楚如何使用它。我如何或者可以拥有一个类似上面显示的自定义类,可以使用MultiAppSettings?如果是这样,我如何注册并访问我的应用程序设置?在声明MultiAppSetting变量时,使用我现有的自定义类作为回退是否合适?有关使用DynamoDbAppSettings的更多指示将非常感激。
答案 0 :(得分:1)
AWSApps AppHost通过在AppHost构造函数中分配MultiAppSettings
,显示了使用DynamoDbAppSettings
和base.AppSettings
的示例,例如:
public AppHost() : base("AWS Examples", typeof(AppHost).Assembly)
{
#if !DEBUG
//Deployed RELEASE build uses Config settings in DynamoDb
AppSettings = new MultiAppSettings(
new DynamoDbAppSettings(newPocoDynamo(AwsConfig.CreateAmazonDynamoDb()),
initSchema:true),
new AppSettings());
#endif
}
现在将替换base.AppSettings
提供程序,只需查看您的Web.config <appSettings/>
,首先查看DynamoDB中的config,然后在特定条目不存在时回退到Web.config appSettings。
E.g。这在AppHost.Configure()
到populate API Keys for each registered AuthProvider中使用:
return new AuthFeature(() => new AuthUserSession(),
new IAuthProvider[]
{
new CredentialsAuthProvider(), //HTML User/Pass
new BasicAuthProvider(), //HTTP Basic Auth
new DigestAuthProvider(AppSettings), //HTTP Digest Auth
new TwitterAuthProvider(AppSettings), //Twitter
new FacebookAuthProvider(AppSettings), //Facebook
new YahooOpenIdOAuthProvider(AppSettings), //Yahoo OpenId
new OpenIdOAuthProvider(AppSettings), //Custom OpenId
new GoogleOAuth2Provider(AppSettings), //Google OAuth2
new LinkedInOAuth2Provider(AppSettings), //LinkedIn OAuth2
new GithubAuthProvider(AppSettings), //GitHub OAuth Provider
})
{
HtmlRedirect = "/awsauth/",
IncludeRegistrationService = true,
};
IAppSettings
会自动在Funq中注册,因此您的服务可以像访问任何其他依赖项一样访问它,例如:
public class MyServices : Service
{
public IAppSettings AppSettings { get; set; }
}